The correct relationship between chromosomes, DNA, and genes is represented by diagram B.
DNA is a nucleic acid that contains genes, and chromosomes are long strands of DNA wrapped or coiled with histone protein.
- DNA is the well-known double-stranded structure consisting of sugars alternating with phosphates as their backbone, connected by hydrogen bonds.
- Genes are made up of long, strings of nitrogenous bases, ranging from a few thousand to a few million,
- Chromosomes contain all of the nucleic acid and other genetic material (DNA and histone protein) present in the nucleus
The number of chromosomes and genes depends on the species to species, but the basic structure and function of DNA remain the same.
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